Help me identify those 2 L.A tracks from early 1990, do they even exist on vinyl ?

This tape was made sometimes in end of 1989 or 1990 in L.A (was btw sent to me by a friend living over there), since then, impossible to find any infos bout them, do they even exist on vinyls or were they only meant to be promo tracks ? Zero infos bout them on google, a real mystery.
Thanks for the help !